Optimize duration of loading script

common_language.py

@@ -14,8 +14,6 @@
 # limitations under the License.
 """ Common Language Dataset"""
 
-
-import glob
 import os
 
 import datasets
@@ -150,18 +148,14 @@ class CommonLanguage(datasets.GeneratorBasedBuilder):
 
     def _generate_examples(self, archive_path, split):
         """Yields examples."""
-
-        csv_path_glob = os.path.join(archive_path, "**", f"{split}.csv")
-
         key = 0
-        for csv_path in sorted(glob.glob(csv_path_glob)):
+        for language in _LANGUAGES:
+            csv_path = os.path.join(archive_path, language, f"{split}.csv")
             with open(csv_path, encoding="utf-16") as fin:
                 next(fin)  # skip the header
                 for line in fin:
                     client_id, wav_name, sentence, age, gender = line.strip().split("\t")[1:]
-                    language = csv_path.split(os.sep)[-2]
-                    path = os.path.join(os.path.splitext(csv_path)[0], client_id, wav_name)
-
+                    path = os.path.join(archive_path, language, split, client_id, wav_name)
                     yield key, {
                         "client_id": client_id,
                         "path": path,